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#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <QOpenGLWidget>
#include <QOpenGLFunctions>
#include <QOpenGLBuffer>
#include "gcodeinterpreter.h"

QT_BEGIN_NAMESPACE
class QOpenGLShaderProgram;
class QOpenGLTexture;
QT_END_NAMESPACE

class GLWidget
        : public QOpenGLWidget
        , protected QOpenGLFunctions {
    Q_OBJECT

public:
    explicit GLWidget(QWidget *parent = 0);
    ~GLWidget();

    QSize minimumSizeHint() const override;
    QSize sizeHint() const override;

    void loadGCode(const QString& filename);
    int getLayerMin() const {
        return m_LayerMin;
    }


    int getLayerMax() const {
        return m_LayerMax;
    }

public slots:
    void onGCodeLoaded();

signals:
    void clicked();
    void layerMinMaxChanged(int min, int max);

protected:
    void updateLayerMinMax();
    void initializeGL() override;
    void paintGL() override;
    void resizeGL(int width, int height) override;

    void drawBoundingBox();
    void drawModel();
public:
    void setLayer(int l) {
        this->layer = l;
    }

protected:
    void mousePressEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent* event);
    void mouseMoveEvent(QMouseEvent *event);
    void wheelEvent(QWheelEvent* event);

private:
//    GCodeInterpreter interpreter;
    QOpenGLShaderProgram *program;
    GLuint m_posAttr;
    GLuint m_colAttr;
    GLuint m_matrixUniform;
    int layer;
    QPoint lastMousePosition;
    bool midMousePressed;
    bool leftMousePressed;
    bool rightMousePressed;

    Point3f m_Min;
    Point3f m_Max;
    std::vector<GCodeLine> m_GCodeLines;
    int m_LayerMin;
    int m_LayerMax;

    GCodeInterpreter* m_pInterpreter;
    float transX, transY, transZ;
    float rotX, rotY, rotZ;
};

#endif
